This is my favorite packing cube and my most versatile crossbody bag. You're going to want all of the colors! Holds 3 days of clothing. Large enough for an iPad Pro 11" 4th Generation in a padded sleeve. A functional bag that also brings the joy with beautiful color options (lots of fun to coordinate with your luggage, totes, or outfits). I've found that the Halcyon fabric versions hold the same amount of items as the ballistic and Cerylon versions, but the latter 2 have a bit more structure (making it slightly easier to keep open when packing, and slightly less floppy when using as a crossbody bag - I love both though).
Photos:
1-2: coordinating with other Tom Bihn bags
3: in a Monster truck, 2 in the middle compartment
4: fully packed with 3 days of clothes (warm weather)
5: joyful color options
6-8: fully packed ballistic (black) and Halcyon
9: holding an iPad pro 11" 4th Generation, in a case
10-11: used as packing cubes in a Techonaut 45 (then as crossbody bags at my destination)